149818977 has 112 divisors (see below), whose sum is σ = 298415232. Its totient is φ = 72783360.

The previous prime is 149818973. The next prime is 149818993. The reversal of 149818977 is 779818941.

149818977 is a `hidden beast` number, since 1 + 498 + 1 + 89 + 77 = 666.

It is not a de Polignac number, because 149818977 - 2² = 149818973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149818973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 954183 + ... + 954339.

Almost surely, 2^149818977 is an apocalyptic number.

149818977 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

149818977 is a deficient number, since it is larger than the sum of its proper divisors (148596255).

149818977 is a wasteful number, since it uses less digits than its factorization.

149818977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 195 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 149818977 is about 12240.0562498707. The cubic root of 149818977 is about 531.1154589495.

The spelling of 149818977 in words is "one hundred forty-nine million, eight hundred eighteen thousand, nine hundred seventy-seven".